Sparse and Cosparse Audio Dequantization Using Convex Optimization

20 May 2020 Záviška Pavel Rajmic Pavel

The paper shows the potential of sparsity-based methods in restoring quantized signals. Following up on the study of Brauer et al. (IEEE ICASSP 2016), we significantly extend the range of the evaluation scenarios: we introduce the analysis (cosparse) model, we use more effective algorithms, we experiment with another time-frequency transform... (read more)

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